Low-compression fuel



Patented May 21, 1929.

UNITED STATES PATENT OFFICE.

EUPHIME V. BERESLAVSKY, OF NEW YORK, N. Y., ASSIGN 'OR TO ETHYL GASOLINE CORPORATION.

LOW-COMPRESSION IUEL.

No Drawing.

This invention relates to the suppression of a fuel knock in a motor when a mixture of a low compression fuel, such as gasoline or kerosene, and air is burned under a relativeliy; high compression.

' I ave found that compounds of the mesitylene group, which includes the substance mesitylene, its amino-compounds and derivatives of the amino-compounds, suppress this fuel knock when the fuel mixture is burned 1n the presence of one of these compounds. These compounds include mesidine, diaminomesitylene, triamino-vmesit lene or their corresponding methyl and et yl compounds.

In a commercial method of utilizing the invention, one or more of these mesitylenes is admixed with or dissolved in the liquid fuel, alcohol benzol, or some other blending agent, being employed, if desired, to effect a homogeneous admixture.

The same result may be obtained b feeding one of the mesitylenes into the inta e of the engine as by atomizing it therein or by feeding it into the combustion chamber of the engine prior to ignition.

By wa of example, I may dissolve twenty grams 0 the diamino-mesitylene in twenty Application fled September 17, 1925. Serial 1T0. 57,017.

cubic centimeters of ethyl alcohol and mix this solution into one gallon of gasoline. This proportion quantity of anti-knock substance will suppress a knock in present day automobile engines and generally will permit increasing the compression pressure of the engine about twenty pounds.

The effectiveness of the com ounds of the 35. mesitylene family as anti-knocks varies, and in general the compounds having the higher specific gravity are more effective quantitatively than the compounds having the lower specific gravity.

I claim:

1. A low compression motor fuel, such as gasoline or kerosene, containing a compound elon 'ng to the mesitylene group.

2. 5 low compression motor fuel, such as gasoline of kerosene, containing diaminomesitylene.

3. A low compression motor fuel, such as gasoline or kerosene, containing diaminomesitylene and a blending agent.

In testimony whereof I hereto aflix my signature.

EIIPHIME V. BERESLAVSKY. 

